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                <p>在心中默念任意选择一个两位数</p>
                <p>(或则说，从10~99之间任意选择一个数)</p>
                <p>把这个数字分别减去其十位和个位</p>
                <p>(列：选71，那就：71-7-1=63)</p>
                <p>在右图找到对应数字的图案</p>
                <p>然后点击上方阵型</p>
                <p>最后看结果对不对</p>
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